HD26LS32A Datasheet PDF - Hitachi Semiconductor
| Part Number | HD26LS32A | |
| Description | Quadruple Differential Line Receivers | |
| Manufacturers | Hitachi Semiconductor | |
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HD26LS32A
Quadruple Differential Line Receivers With 3 State Outputs
The HD26LS32A features quadruple line receivers
designed to meet the specs of EIA standard RS-
422A and RS-423. This device operates from a
single 5 V power supply. The enable function is
common to all four receivers and offers a choice
of active high or active low input. Fail safe design
ensures that if the inputs are open, the outputs will
always be high.
Logic Diagram
1A
1B
2A
2B
3A
3B
4A
4B
Enable G
Enable G
1Y
2Y
3Y
4Y
Pin Arrangement
1B 1
1A 2
1Y 3
Enable 4
G
2Y 5
2A 6
2B 7
GND 8
16 VCC
15 4B
14 4A
13 4Y
12 Enable
G
11 3Y
10 3A
9 3B
(Top View)
Function Table
Differential Input
A–B
VID ≥ VTH
VTL < VID < VTH
VID ≤ VTL
X
Enable
GG
HX
XL
HX
XL
HX
XL
LH
H : High level
L : Low level
X : Immaterial
? : Irrelevant
Z : High impedance
Output
Y
H
H
?
?
L
L
Z
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HD26LS32A
HD26LS32A
2. tHZ, tZH
Test circuit
2.5 V
Input
Pulse
Generator
2V
3. tLZ, tZL
VCC Waveforms
Output 2 KΩ
S1 Enable G 1.3 V
CL 5 KΩ
Enable G 1.3 V
1.3 V
1.3 V
3V
0V
3V
0V
Output
1.3 V
tZH
S1:Open
0.5 V
≈1.4 V
0V
tHZ
S1:Closed
Test circuit
–2.5 V
Input
Pulse
Generator
2V
Waveforms
VCC
Output 2 KΩ
Enable G 1.3 V
CL 5 KΩ
Enable G 1.3 V
1.3 V
1.3 V
3V
0V
3V
0V
S2
Output
1.3 V
1.4 V
VOL
0.5 V
tZL
S2:Open
tLZ
S2:Closed
Notes: 1. The pulse generator has the following characteristics :
PRR=1 MHZ, 50 % duty cycle, tr ≤ 6ns, tf ≤ 6ns, Zout=50 Ω.
2. CL includes probe and jig capacitance.
3. All diodes are 1S2074 H
4. To test G input,ground G input and apply an inverted
input waveform.
5
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for HD26LS32A electronic component. |
| Information | Total 5 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ HD26LS32A.PDF Datasheet ] | |
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Featured Datasheets
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